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通过血吸虫化疗及化疗不同强度与辅助易感地带药物灭螺的措施，进行了影响感染性钉螺变化的比较观察。结果表明，全民化疗时降低钉螺感染率，减少感染性钉螺密度有明显作用；不同化疗强度，对钉螺感染率的影响程度不一；化疗辅助易感地带药物灭螺的措施是当前血吸虫病防制战略的理想选择之一。
Through the schistosomiasis chemotherapy and chemotherapy with different strength and auxiliary susceptible zone snail snail measures, affecting the infection of snails comparative study. The results showed that the national chemotherapy to reduce the snail infection rate and reduce the density of infectious snails have a significant effect; different intensity of chemotherapy, snail infection rate of varying degrees; chemotherapy adjuvant susceptible zone snail control measures are the current schistosomiasis control One of the ideal choices for strategy.